%% You should probably cite rfc6212 instead of this I-D.
@techreport{kucherawy-authres-vbr-04,
    number =    {draft-kucherawy-authres-vbr-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-kucherawy-authres-vbr/04/},
    author =    {Murray Kucherawy},
    title =     {{Authentication-Results Registration for Vouch by Reference Results}},
    pagetotal = 7,
    year =      2011,
    month =     jan,
    day =       18,
    abstract =  {This memo updates the registry of properties in Authentication- Results: message header fields to allow relaying of the results of a Vouch By Reference query. {[}STANDARDS-TRACK{]}},
}